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Make a few things const, fix some comments, and simplify

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some assertions.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@63328 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Dan Gohman 2009-01-29 19:49:27 +00:00
parent f87d28745a
commit 1cc6b8ee78
1 changed files with 8 additions and 16 deletions
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24
lib/CodeGen/SelectionDAG/ScheduleDAGRRList.cpp
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@ -91,7 +91,7 @@ public:
return Topo.IsReachable(SU, TargetSU);
}
/// willCreateCycle - Returns true if adding an edge from SU to TargetSU will
/// WillCreateCycle - Returns true if adding an edge from SU to TargetSU will
/// create a cycle.
bool WillCreateCycle(SUnit *SU, SUnit *TargetSU) {
return Topo.WillCreateCycle(SU, TargetSU);
@ -114,8 +114,8 @@ public:
}
private:
void ReleasePred(SUnit *SU, SDep *PredEdge);
void ReleaseSucc(SUnit *SU, SDep *SuccEdge);
void ReleasePred(SUnit *SU, const SDep *PredEdge);
void ReleaseSucc(SUnit *SU, const SDep *SuccEdge);
void CapturePred(SDep *PredEdge);
void ScheduleNodeBottomUp(SUnit*, unsigned);
void ScheduleNodeTopDown(SUnit*, unsigned);
@ -192,7 +192,7 @@ void ScheduleDAGRRList::Schedule() {
/// ReleasePred - Decrement the NumSuccsLeft count of a predecessor. Add it to
/// the AvailableQueue if the count reaches zero. Also update its cycle bound.
void ScheduleDAGRRList::ReleasePred(SUnit *SU, SDep *PredEdge) {
void ScheduleDAGRRList::ReleasePred(SUnit *SU, const SDep *PredEdge) {
SUnit *PredSU = PredEdge->getSUnit();
--PredSU->NumSuccsLeft;
@ -312,8 +312,7 @@ void ScheduleDAGRRList::UnscheduleNodeBottomUp(SUnit *SU) {
}
/// BacktrackBottomUp - Backtrack scheduling to a previous cycle specified in
/// BTCycle in order to schedule a specific node. Returns the last unscheduled
/// SUnit. Also returns if a successor is unscheduled in the process.
/// BTCycle in order to schedule a specific node.
void ScheduleDAGRRList::BacktrackBottomUp(SUnit *SU, unsigned BtCycle,
unsigned &CurCycle) {
SUnit *OldSU = NULL;
@ -327,11 +326,7 @@ void ScheduleDAGRRList::BacktrackBottomUp(SUnit *SU, unsigned BtCycle,
--CurCycle;
}
if (SU->isSucc(OldSU)) {
assert(false && "Something is wrong!");
abort();
}
assert(!SU->isSucc(OldSU) && "Something is wrong!");
++NumBacktracks;
}
@ -751,10 +746,7 @@ void ScheduleDAGRRList::ListScheduleBottomUp() {
CurSU = NewDef;
}
if (!CurSU) {
assert(false && "Unable to resolve live physical register dependencies!");
abort();
}
assert(CurSU && "Unable to resolve live physical register dependencies!");
}
// Add the nodes that aren't ready back onto the available list.
@ -785,7 +777,7 @@ void ScheduleDAGRRList::ListScheduleBottomUp() {
/// ReleaseSucc - Decrement the NumPredsLeft count of a successor. Add it to
/// the AvailableQueue if the count reaches zero. Also update its cycle bound.
void ScheduleDAGRRList::ReleaseSucc(SUnit *SU, SDep *SuccEdge) {
void ScheduleDAGRRList::ReleaseSucc(SUnit *SU, const SDep *SuccEdge) {
SUnit *SuccSU = SuccEdge->getSUnit();
--SuccSU->NumPredsLeft;